Band-cutter and feeder for threshing-machines.



, PATENTED JUNE '25, 1907.

I H. J. WIESE.

- BAND CUTTER AND EEEDEE EOE THRESHING MACHINES.

APPLICATION FILED DEC. 6; 19.06,

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TINITED STATES PATENT oEEIoE.

HENRY J. WIESE, OF ROCHESTER, MINNESOTA.

BAND-CUTTER AND FEEDER FOR THRESHlNG-MAOHINES.

Specification of Letters Patent.

Patented June 25, 1907.

Application filed December 6,1906. Serial No. 346,647.

, shafts are employed for supporting, carrying,

and imparting motion to operative parts of the mechanism, the principal object of the invention being to provide simple and improved means for preventing the straw from becoming attached to and wound upon such crank shafts, and thus interfere with the operation of the mechanism.

With these and other ends in view whichwill readily appear as the nature of the invention is better understood, the same consists in the improved construction and novel arrangement and combination of parts which will be hereinafter fully described and particularly pointed out in the claims.

In the accompanying drawings has been illustrated a simple and preferred form of the invention; it being, however, understood that no limitation is necessarily made to the precise structural details therein exhibited, but that changes, alterations and modifications within the scope of the invention may be resorted to when desired.

In the drawingsFigure 1 is a sectional elevation showing a portion of a band cutter and feeder having a crank shaft provided with the improved protecting means. Fig. 2 is a transverse sectional view taken on the plane indicated by the line 2-2, Fig. 1. Fig 3 is a perspective detail view.

Corresponding parts of the several figures are denoted by like characters of reference.

A shaft 1 has been shown, said shaft being supported in bearings 2, 2, which may be formed in side walls 3, 3, that constitute the frame or casing of a feeding and band cutting apparatus, a grain separator or other analogous machine. The shaft 1 has a plurality of cranks 4, 4, formed thereon and upon said cranks are journaled boxes 5, 5, which, in the present instance, are utilized for supporting and imparting movement to the longitudinally disposed members 6, which constitute a part of the feeding and band cutting mechanism. The boxes 5, 5 are each composed of two separably connected parts 7, 7, said parts being connected with each other and clamped upon the cranks 4, by means of bolts 8 which latter also serve to connect the members 6 with the boxes.

Connected with the under sides of the boxes 5, are flexible guard plates 9, which, in the present instance, are interposed between the boxes 5 and the longitudinal members 6, said guard plates being secured in position by means ofthe bolts 8, which extend througd apertures in the guard plates. These guarh plates may consist of pieces of leather or other suitable flexible material; it being preferred to employ leather that possesses a degree of stiffness and resiliency; other material than leather may, however, be employed within the scope of the invention, the right being reserved to use any material or combination of materials that may be found to be suitable and appropriate for the purposes of the invention. The guard plates 9, are made of such dimensions that they will project laterally beyond the boxes with which they are connected so as to form wings 10, 10, that lie in the paths of the side members 11, of the cranks 4, said side members being usually and preferably dis osed obliquely so that the wings or latera y extending portions of the guard plates will, by contact with side members, be deflected downwardly when the cranks move upwardly above the axis of the crank shaft; when, on the other hand, the cranks pass below the axis of the crank shaft, they will be disengaged from contact with the guard plates, which latter, owing to their inherent resiliency, will be restored to an approximately plane condition. This will be readily understood by reference to Fig. 2 of the drawings where several cranks occupying different positions with relation to the'axis of the shaft have been shown.

In threshing machines and grain separators, band cutters and feeders, and other analogous machines employing live crank shafts, and where the straw is constantly passing in direct contact with such crank shaft, much difficulty is frequently experienced owing to the straw becoming attached to and wound upon such crank shafts; it being frequently necessary to stop the machinery for the purpose of disentangling the straw. By providing the guard plates herein shown and described the cranks are protected from contact with the straw, and when the cranks move in an upward position, above the axis of the shaft, the side members of the cranks will engage and deflect the lateral extensions or wings of the guard plates in a downward direction, thus performing a mechanical dofling action, whereby any straw that shows a tendency to adhere to the shaft or boxing Will be positively disengaged. The operation is assisted by the resiliency of the guard plates whereby they are automatically restored to a normal plane position.

From the foregoing description taken in connection with the drawings hereto annexed, the o eration and advantages of this invention wi be readily understood.

The invention is extremely simple and it is capable of being applied, at a trifling expense, wherever it may be needed. It is to be distinctly understood that the use of the invention is not limited to band cutters and feeders, but that the right is reserved to use the same in any machinery where it may be advantageously employed.

. I claim In a threshing machine or grain separator, a crank shaft, boxes engaging with the cranks of said shaft, and flexible guard plates secured upon the under sides of the boxes and adapted to be deflected clownwardly by engagement with the side members of the cranks when the latter rise above the axis of the shaft to mechanically deflect in a downward direction straw passing beneath the shaft.

In testimony whereof I afhx my signature, in presence of two witnesses.

HENRY J. VVIESE.

Witnesses:

GEO. J. ALLEN, FRONIA KoELsoH. 

